<!doctype html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">

  <link rel="icon" href="icon.png">
  <link rel="apple-touch-icon" href="/icon.png">
  <link rel="stylesheet" href="style.css">
  <link rel="manifest" href="manifest.json">

  <link id="flipper-theme-import" rel="stylesheet">

  <title>Flipper</title>
  <script>
    window.flipperConfig = FLIPPER_CONFIG_PLACEHOLDER;
  </script>
  <style>
    .message {
      -webkit-app-region: drag;
      z-index: 999999;
      position: absolute;
      top: 0;
      left: 0;
      bottom: 0;
      right: 0;
      padding: 50px;
      overflow: auto;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: #525252;
      text-align: center;
    }

    .message p {
      font-size: 12px;
    }

    #troubleshoot {
      display: none;
      background-color: white;
    }

  </style>
</head>

<body>
  <div id="troubleshoot" class="message">
    <h1 id="tourbleshoot_title"></h1>
    <p id="tourbleshoot_details"></p>
  </div>

  <div id="root">
    <div id="loading" class="message">
      Loading...
    </div>
  </div>

  <script>
      (function () {
        // Line below needed to make Metro work. Alternatives could be considered.
        window.global = window;

        // Listen to changes in the network state, reload when online.
        // This handles the case when the device is completely offline
        // i.e. no network connection.
        window.addEventListener('online', () => {
          window.location.reload();
        });

        const root = document.getElementById('root');
        const troubleshootBox = document.getElementById('troubleshoot');
        const troubleshootBoxTitle = document.getElementById('tourbleshoot_title');
        const troubleshootBoxDetails = document.getElementById('tourbleshoot_details');

        function showMessage({ title, detail }) {
          if (title) {
            troubleshootBoxTitle.innerText = title
          }
          if (detail) {
            const newMessage = document.createElement('p')
            newMessage.innerText = detail;
            troubleshootBoxDetails.appendChild(newMessage)
          }

          root.style.display = 'none';
          troubleshootBox.style.display = 'flex';
        }

        function hideMessage() {
          root.style.display = 'block';
          troubleshootBox.style.display = 'none';
          troubleshootBoxTitle.innerHTML = ''
          troubleshootBoxDetails.innerHTML = ''
        }

        window.flipperShowMessage = showMessage;
        window.flipperHideMessage = hideMessage;

        // load correct theme (n.b. this doesn't handle system value specifically, will assume light in such cases)
        try {
          if (window.flipperConfig.theme === 'dark') {
            document.getElementById('flipper-theme-import').href = "themes/dark.css";
          } else {
            document.getElementById('flipper-theme-import').href = "themes/light.css";
          }
        } catch (e) {
          console.error("Failed to initialize theme", e);
          document.getElementById('flipper-theme-import').href = "themes/light.css";
        }

        function init() {
          const script = document.createElement('script');
          script.src = window.flipperConfig.entryPoint;
          script.onerror = (e) => {
            const retry = (retries) => {
              showMessage(`Failed to load entry point. Check Chrome Dev Tools console for more info. Retrying in: ${retries}`);
              retries -= 1;
              if (retries < 0) {
                window.location.reload();
              }
              else {
                setTimeout(() => retry(retries), 1000);
              }
            }

            retry(3);
          };

          document.body.appendChild(script);
        }
        
        init();
      })();
  </script>
</body>

</html>
